Discovered as early as 1927, LED lights, did not start being used in practical applications for another30 to 40 years. LED lights tend to last longer and use less energy to create an equal amount of light compared to conventional lights. As expected these lights have many applications in the world today.
Flashlights with LED bulbs tend to be brighter while using less power than standard flashlights making them more economical and reliable for emergency use. In automotive brake lights, turn signals, and most other vehicle lighting LED lights are being used more and more often, replacing standard bulbs. Many electronic indicator lights have long used LED lights, as, in low power and low heat environs, they may last for as much as 100,000 hours and in some cases longer.
The main drawback of LED lighting for household lighting at this point is the cost of making bright enough LED lights to compete with standard bulbs in brightness while remaining competitive with fluorescent bulbs in cost. This brightness to cost gap is being worked on and the gap is constantly narrowing.
While LED lights tend to have shorter lives at higher temperatures the inverse is also true, LED lights at lower temperatures tend to last significantly longer and their light output increases. Putting this knowledge to use they are being used in supermarket refrigerators and freezers.
As the technology moves forward, LED lights will become the lights of our future, replacing incandescent and fluorescent bulbs in our offices and homes, moving us forward in the quest for a greener world.Usage and Application of LEDs